Truck



Jan. 6, 1942.

J. E. FLESCH 'mucx Filed Oct 19, 1939 2 Sheets-Sheet l I INVENTIOR. John66.56/74 m I I ATTORNEY.

Jan. 6, 1942-.

J. E. FLESCH TRUCK Filed Oct. 19, 1939 2 Sheets-Sheet 2 NQN, wwm ,mwmmmm mmm J i222 4 i gg BY 5 Q ATTORNEY.

Patented Jan. 6, 1942 moon John E. Flesch, Chicago, m.

assignor to American Steel Foundries, Chicago, 111., a corporation ofNew Jersey Appiication october 19, 1939, Serial No. 300,108

26 Claims.

My invention relates to four wheel railway car trucks and moreparticularlyto a type of such truck wherein the side frame is of beamtype and supports a loading member also of beamlike form. In a more orless similar well known type of truck the side frame supports a loadingmember in the form of a flexible semi-elliptic spring which issuperposedthereon.

An object of my invention is such a car truck wherein relative movementbetween the sprung and unsprung members will be afforded between the twomembers .of the truck side structure, vone of which may be superposedupon the other in any one of several modifications which I have hereinset forth.

A definite object of my invention is such a tion of Figures 1 and 3.Vertical guide lugs are afforded on the member H for the bolster end asindicated at l1, I! at the outboard side and l9, I! at the inboard sidethereof. The side structure I2 is of composite form including asupporting beam or side frame 18 of general box section, best seen inthe sectional view of Figure 3, with the bottom chord 20, the topchord22,

the outboard wall -24 andithe inboard wall 26,

said walls being cored out as at 28,28 for convenient foundry practice.The side frame I8 is construction as that above described wherein thesupported beam member is afforded frictional surfaces having engagementwith means on the supporting side frame. My invention comprehendsvarious arrangements wherein said supported beam may -be afforded one ormore tilagonally arranged frictional surfaces at each end thereofsuitably arranged for engagement with complementary frictional surfacescarried upon the supporting side frame.

In the drawings, Figure 1 is a half top plan view of a four wheel truckembodying my inven-' tion, Figure '2 is a half side elevation thereof,and

Figure 3 is a sectional view in the vertical plane bisecting the trucktransversely substantially as indicated by the line H of Figure 2.

Figure 4 is a fragmentary top plan view of a modified form of car truckembodying my invention.

of slightly arcuate form and the side walls .26 and 28 are graduallyincreased in depth approaching the ends thereof to a maximum at 29, 29adjacent the integrally formed journal boxes 30, 30, said journal boxesforming the usual edges affording inboard and outboard abutment- Figure5 is a half elevation, partly in'section,

of the. structure shown in Figure 4 and Figure 6 is a sectional viewtherethrough in a vertical transverse plane taken substantially asindicated by the line 8-8 of Figure 5.

Figures 7 and 8 are fragmentary side eleva- 4 tions, partly in section,of further modifications of my novel form of car truck.

Describing the structure in greater detail and referring moreparticularly to the modification shown in Figures 1, 2 and 3, the truckstriicture comprises the bolster 2 of well known form having the centerplate 4 and the side bearing 6 for abutment with aside bearing member onthe supported car body. The said bolster has an end structure ofbifurcated form comprising the jaw members 8 and I0, each spanning thetop meiiiber H of the, siddframe istructure generally indicated at I2.The jaw end ,of the bolster is seated as at onthe member and has in--means of connection with spaced wheel and axle assemblies (not shown).The side frame has the conventional brake hanger brackets 32, 82integrally formed with the bottom member l8 of -the side frame andconveniently located between the wheels at either side ofthe bolster 2.At the middle of the side frame l8 the side walls 28 and 28 are extendedvertically to form inboard and outboard pedestal guides 34 and3lirespectively, said pedestal guides being reinforced by the verticalflanges 38, 38 and at their upper as at 48 and 42 (Figure 3) for the topbeam member II. The "said top member ll may be supported at either sideof said guides by resilient means diagrammatically indicated at 44, 44,said resilient meansbeing seated as at 48 on the bottom wall 20 of themember I8 and projecting through openings 48, 48 formed in the top wall22 thereof to afford seats as at 50, 50 for the member II. The top wallof the member l8'terminates as at 52 at a point spaced from the adjacentjournal box and the well 53 thus formed is defined by the shelf 54 atthe base thereof, the

side wall 55 of the journal box with which it, 'merges as at 58, and bythe sidewalls 24 and 28 journal box. Centrally within the well 53 may 7bepOsItioned a resilient member ggdiagram matically indicated at 58,said resilient beingafiorded on its top and bottom faces with iiieinberI cavities forming positioning means for engagement with lugs on thebottom of the member II and on the seat 54 as indicated at 60, 60. Asshown, the resilient member 581s contemplated to be in the form of asolid block of rubber-like material and accordingly space for theexpansion thereof is afforded entirely therearound as best seen from thetop plan view of Figure 1. Guide pads 62 and 64 are afforded on the sidewalls 26 and 24 within the well 53 for close engagement with the sidewalls at the extremity of the member II and the end wall ofthe member IIhas a close fit as at 66 (Figures 1 and 2) with the adjacent side wallof the journal box, thus confining the resilient member 58 against anyexcept lateral expansion.

As will be seen, the beam member II is a very simple casting of box-likeform cored out at spaced points as at 68 for, convenient foundrypractice.

In the embodiment shown in Figures 4', 5 and 6, the bolster I02 isidentical with that of the em- 3 bodiment first described with thejaw-like end I04 seated as at I06 on the top member I08 of the wall N8,the inboard side wall I20 and the out-v board side wall I22. reinforcedadjacent the end by the vertical rib I 24 which reinforces thetop wall II8 at the offset portion I26 adjacent the end thereof where saidoil'setportion forms the base or bottom 'of the well I28, said wellbeing defined by the adjacent wall of the journal box, the upwardlyextending.

portions I30 and I32 (Figure 6) of the side walls of the member H0, andopposite the journal box by the wall I34 formed at the ofiset I36 of thetop wall II8. Within the well I28 may be seated at opposite ends thereofthe resilient members I38, I38 in the form of solid blocks ofrubber-like material and between said resilient members I38, I38 may bepositioned wedge blocks I40, I40 spaced apart as at I, said wedge blockshaving abutment against said resilient members and presenting at theupper ends thereof diagonally arranged flat friction surfaces forengagement as at I42, I42 with friction surfaces of complemen tary formon the end of the side frame member I08. The shape of the end portion ofthe member I08 is best shown in the side elevation of Figure 5presenting fiat surfaces I44, I44 converging in a downward direction forengagement with and compression between the friction blocks I40, I40.

The end of the member I08 is closely confined by abutment as at I46, I46with the side walls of the member IIO, guide pads I41 accommodating thiscondition, and by endabutment as at I48 with lugs. In this modificationspace is afforded for expansion of the resilient members I38 between thewalls I30 and I32 (Figure 6) and in an upward direction as seen from aconsideration of Figurer5. When relativemovement occurs between the topmember I08'and the bottom member I I0 of the side frame as bycompression of the springs at II2, the V-shaped end of the member I08will be forced downwardly between the wedge The box-like structure is.

blocks I40, I40, thus urging them apart and compressing the resilientmembers I38, I38 thus developing frictional absorption between saidblocks and said V-shaped end.

In the modification shown in Figure 7 the top side frame member 202 isgenerally similar to those described for the previous modificationsexcept for the end portion thereof more particularly describedhereafter. The lower side frame member 204 is substantially identicalwith that shown in the modification of Figures 1, 2 and 3, having thewell 206 adjacent the journal box 208 defined by the bottom shelf 2I0reinforced by the vertical rib 2 I2 and the widened side walls of thebottom member 204. Within the well 206 may be seated at block ofresilient material 2 I 4 in abutment against the side wall of thejournal box and forming a seat at its opposite side as at 2I6 for thewedge block 2I8, said wedge block having a fiat surface in abutment withsaid resilient member and a flat bottom seat on the shelf 2I0 andpresenting on its top surface a diagonal friction face for engagement asat 220 with the complementary face formed on the V-shaped end 222 ofthemember 202. The end of the member 202 is closely guided between theside walls of the member 204, guide pads 224 and 225 being formedrespectively on said top member 202 and on the side walls of the member204 for that purpose and the extremity of said member 202 has abutmentas at 226 against guide lugs formed on the walls of the member 204. Whenrelative movemen occurs between the top and bottom members 202 and 204,frictional absorption will be developed at 220 and under certainconditions at 226 as will be apparent to those skilled in the art.

The modification shown in Figure 8 differs'from that shown in Figure 7principally in the form of the top member of the side frame and themanner in which the ends thereof are supported from the bottom member304'thereof. The said bottom member is substantially identical with thatdescribed in the modification shown in Figures 4 to 6. The said bottommember 304 has the bottom wall 306, the top wall -308 downwardly offsetas at 3I0 to the shelf 3I2 which merges-as at 3I4 with the side wall ofthe journal box 3I6. The said side 'wall of the journal box togetherwith the side walls of the member 304 and the transverse wall 3I8 definethe pocket 320 within which may be seated the resilient member 322having abutment as at 324 with the wedge block 326, said wedge blockpresenting opposite the side wall of the journal box a diagonallyarranged friction surface for engagement as at 328 with an inwardlydirected complementary friction surface formed on the end of the member302. The end of the member 302 is thus of V-shaped form having thevertical end wall in abutment as at 330 with theside wall of the journalbox so that the v-shaped end of the member 302 is confined between theside wall of the journal box and the wedge block 326. Downward movementof the upper member 302 will thus force the wedge block 326 away fromthe journal box, thus compressin the resilient member 322 and developingfriction between the V-shaped end of the top member 302 and the opposingsidewall of the journal box and the wedge 326. Under certain conditionsthe friction may be developed entirely between the member 302 and thewedge block 326 when there is no relative end play between the top andbottom members of the side frame. The top member 302 is closely confinedbetween the side walls of the bottom member 304 as described for said.superposed member and having thrust previous modifications and in themodification now under consideration the resilient. member 322 isafforded expansion upwardly and laterally.

It is to be understood that I do not wish to be limited by the exactembodiments .of the device shown which are merely by way of illustrationand not limitation as various and other forms of the device will, ofcourse, be apparent to those skilled in the art without departing fromthe.

spirit of the invention or the scope of the claims.

I claim: 1. In a railway car truck, a side frame com.- prising a beammember of box section having integral journal boxes and pockets adjacentsaid journal boxes between the side walls of said member, alongitudinally extending rigid member superposed on said beam memberhaving-its ends seated in said pockets, pedestal means formed on saidbeam member and serving as guide means for'said superposed member,resilient means interposed between said beam member and said superposedmember at intermediate spaced points, resilient pads within said pocketssupporting the ends of said superposed member, a loadcarrying memberseated upon said superposed member and having thrust means engagingopposite sides thereof, and thrust means on said superposed memberpreventing longitudinal displacement of said load carrying member.

2. In a'railway car truck, a. composite side frame comprising a beammember of general box section, journal boxes integrally formed at theends thereof, pockets between the side walls thereof adjacent saidjournal boxes, friction means supported in said pockets, resilient meanssaid beam member comprising journal boxes integrally formed at the endsthereof and deepened side walls forming pockets adjacent said journalboxes, friction wedge blocks resiliently seatedin I said pockets, aloading member having downwardly projecting V-shaped ends with frictionsurfaces engaged between-said blocks, other resilient means supportingsaid loading member on said beam member at spaced points intermediatetheir ends, and guide means on one of said mem-' bers having abutmentwith the other thereof intermediate said pockets.

4. In a railway car truck, a side frame comprising a beam member of boxsection having integral .journal boxes and pockets adjacent said journalboxes between the side walls of sa d member, a longitudinally extendingri id memb=r superposed on said beam member having its ends seated insaid pockets, pedestal means formed on said beam member and serving asguide means for said superposed member, resilient means in terposedbetween said beam member andsaid superposed member at intermediatespaced points, resilient pads positibned between the ends of saidsuperposed member and said beam member, and a load carrying memberseated upon means engaging opposite sides thereof.

5. In a four wheel railway truck, a side frame comprising a beam memberof box section, said beam member having integrally formed journal boxesand deepened side walls forming pockets adjacent said boxes, frictionalmeans and a resilient pad seated in operative arrangement within saidpockets, a superposed member having wedge-like end portions downwardlyprojecting into said pockets for engagement with and support on saidfrictional means, and other I resilient means interposed at spacedpoints between-said members, one of said members having pedestal meansformed at an intermediate point vserving as guide means for the otherthereof. I

6. In a side frame structure for a railway car, top and bottom beammembers of box section, said bottom member having integral journalboxes, the inner walls of which merge with the bottom wall of saidbottom member adjacent the bottoms of said boxes, pockets formed in saidbottom member between the lateral walls thereof andadjacent said boxes,friction means within said pockets, said top member having end por-'tion's resiliently supported in said pockets for frictional engagementwith said means, said re-,

silient support comprising-a pad of resilient material in abutment withsaid bottom member and said friction means, resilient means interposedbetween said members at intermediate points, and lateral guide means onsaid members.

7. In a four wheel truck, a side frame com prising a beam'of box sectionwith integral journal boxes at the ends thereof and pockets adjacentsaid journal boxes between the side walls of said beam, frictional meansresiliently supported in said pockets, said resilient support comprisingblocks of resilient material compressed between said frictional meansand certain walls of said pockets, a member superposed on said beam andhaving its ends downwardly projectinginto said pockets with frictionalsurfaces engaging said frictional means, other resilient meansinterposed between said beam and said member at spaced points betweensaid packets,

and pedestal means formed on-said beam intermediate the ends thereofafi'ording inboard and outboard guide means for said member.'

8. In a railway car truck,- a composite side Iframe comprising a beammember of general box section, journal boxes integrally formed at theends thereof, pockets between the side walls there of adjacent saidjournal boxes, friction means and resilient means supported in saidpockets with certain ofsaid means abutting certain vertical walls ofsaid pockets, a loading member superposed on said beam member and havingdownwardly projecting ends received in said pockets with frictionalsurfaces in engagement with said friction means, and other resilientmeans interposed between said members at spaced points between saidpockets.

9. In a side structure for a railway car truck, a beam member of boxsection comprising integrally formed journal boxes and pockets adjacentsaid boxes between the side wals thereof, resilient means and wedgeblocks seated in said pockets with said resilient means compressedbetween said wedge blocks and certain walls of saidpockets, a loadingmember having end portions with friction surfaces in' abutment with saidwedge blocks within said' pockets, other resilient means interposed atspaced points he'- tween said members, and pedestal guide means formedon one of said members intermediate the ends thereof for inboard andoutboard engagement with the other of said members.

10. In a railway car truck, a composite side structure comprising topand bottom beam members of general box section, said bottom membercomprising journal boxes integrally formed at the ends thereof anddeepened sidewalls forming pockets adjacent said journal boxes, frictionwedge blocks resiliently seated in said pockets, said top member havingdownwardly projecting V-shaped ends with friction surfaces engagedbetween said blocks, and other resilient means supporting said topmember on said bottom member at spaced points intermediate their ends.

11. In a railway car truck, a side structure having top and bottombeam-like members of box section, said bottom member having upwardlyopening pockets adjacent the ends thereof, a plurality of wedge blocksresiliently seated in each of said pockets, said top member havingwedge-like ends downwardly projecting into said pockets in frictionalengagement between said wedge blocks respectively, a plurality ofresilient members interposed at spaced points between said members, andmeans on said members affording lateral guide means therefor.

12. In a side frame structure for a railway car, top and bottom membersof box section, said bottom member having integral journal. boxes, theinner walls of which merge with the bottom wall of said bottom memberadjacent the bottoms of said boxes, pockets formed in said bottom memberbetween the lateral walls thereof and adjacent said boxes, frictionmeans within said pockets presenting friction surfaces, said top memberhaving end portions resiliently supported in said pockets in frictionalengagement with said surfaces, said resilient support includingr'esilient means operatively arranged with said friction means withinsaid pockets, and other resilient means interposed between said membersat intermediate points. 3

13. In a railway car truck, a side structure having top and bottom beammembers, said bottom member having at the ends thereof integral journalboxes and pockets formed adjacent said boxes, wedge blocks resilientlysupported in each of said pockets, said top member having V-shaped endportions received respectively in said pockets between said blocks forfrictional engagement therewith, spaced resilient means interposedbetween said members, and guide means on one of said members affordinglateral abutment for the other thereof.

14. In a railway car truck, a side structure having top and bottombeam-like members of box section, said bottom member having upwardlyopening pockets adjacent the ends thereof, a plurality of wedge blocksresiliently seated in each of said pockets, said to member havingwedge-like ends downwardly projecting into said pockets in frictionalengagement between said Wedge blocks respectively, and a plurality ofresilient means interposed at spaced points between said members.

15. In a four wheel truck, a side frame comprising a beam of box sectionwith integral journal boxes at the ends thereof and pockets adjacentsaid journal boxes between the side walls of said beam, frictional meansresiliently supported in said pockets, said resilient support includingresilient pads compressed between said frictional means and certainwalls of said pockets,

a member superposed on said beam and having its ends downwardlyprojecting into said pockets with frictional surfaces engaging saidfrictional means, and other resilient means interposed between the saidbeam and said member at spaced points between said pockets.

16; In a four wheel railway truck, a side frame comprising a beam memberof generally box section, said beam member having integrally formedjournal boxes and deepened side walls forming pockets adjacent saidboxes, frictional means resiliently positioned within said pockets fromcertain vertical walls thereof, a loading member having end portionsdownwardly projecting into said pockets for engagement with and supporton said frictional means, and other resilient means interposed at spacedpoints between said members.

17. In a side frame for a railway car, a beam member of box sectioncomprising integrally formed journal boxes and pockets adjacent saidboxes between the side walls thereof, resilient means and wedge blocksseated in said pockets, said resilient means being compressed betweensaid blocks and certain walls. forming said pockets, a loading memberhaving end portions with friction surfaces in abutment with said wedgeblocks within said pockets, and other resilient means interposed atspaced points between said members.

18. In a railway car truck, a side structure having top and bottom beammembers, said bottom member having at the ends thereof integra journalboxes and pockets formed adjacent said boxes, wedge blocks resilientlysupported in each of said pockets, said top member having V-shap-ed endportions received respectively in said pockets between said blocks forfrictional engagement therewith, and spaced resilient means interposedbetween said members.

19. In a railway car truck, aside frame structure having top and bottombeam-like members of box section, said bottom member having upwardlyopening pockets adjacent the ends thereof, a plurality of resilient padsseated in each of said pockets, wedge blocks between said resilientpads, said top member having wedge-like ends downwardly projecting intosaid pockets in frictional engagement between said wedge blocksrespectively, and a plurality of resilient members interposed atintermediate spaced points between said members.

20. In a railway car truck, a side frame structure having top and bottombeam-like members of box section, said bottom member having upwardlyopening pockets adjacent the ends thereof, resilient members abuttinglateral walls of said pockets, friction blocks interposed between saidresilient members, said top member having wedge-like ends downwardlyprojecting into said pockets in frictional engagement with said frictionblocks respectively, and a plurality of resilient members interposed atintermediate spaced points between said beam-like members.

21. In a railway car truck, a side frame structure having top and bottombeam members, said bottom member havingat the ends thereof integraljournal boxes and pockets formed adjacent said boxes, spaced resilientmembers seated at opposite ends of said pockets, wedge blockstherebetween, said top member having V-shaped end portions receivedrespectively in said pockets between said blocks for frictionalengagement therewith, and spaced resilient means interposed between saidbeam members.

22. In a railway car truck, a side frame structure having top and bottombeam members, said bottom member having at the ends thereof integraljournal boxes and pockets formed adjacent said boxes, wedge blocks andresilient pads seated in. operative arrangement within said pockets,said top member having V-shaped end portions received respectively insaid pockets between said blocks for frictional engagement therewith,and spaced resilient means interposed between said members.

23. In a'railway car truck, a side frame structure having top and'bottombeam members, said bottom member having at the ends thereof integraljournal boxes and pockets formed adjacent said boxes, wedge blocksresiliently supported on each of said pockets, said top member havingtapering end portions received respectively in said pockets between saidblocks for frictional engagement therewith, said resilient support beingdisposed to resist movement of said blocks away from each other, andspaced resilient means interposed between said members.

24. In a railway car truck, a side frame comprising a bottom member ofbox section with integrally formed journal boxes, pockets in said bottommember adjacent to said boxes, a wedge block resiliently'seated in eachpocket and presenting a diagonal friction face opposite the adjacentbox, a top member having a downwardly projecting wedge-like end portioninterposed between said wedge block and the adjacent journal box forfrictional engagement therewith, and other resilient means interposed atspaced points between said members.

25. In arailway car truck, a side frame comprising a bottom member ofbox section with integrally formed journal bottom member adjacent tosaid boxes, friction means in said pockets presenting diagonal wedgefaces opposite said boxes, resilient means compressed between saidfriction means and certain walls of said pockets for frictionalengagement with said friction means, and a plurality of resilent membersinterposed at spaced points between said top and bottom members.

26. In a railway car truck, a side frame comprising a bottom member ofbox section with integrally formed journal boxes, pockets in said bottommember adjacent to said boxes, wedge means in said pockets, resilientmeans compressed between said wedge means and said Journal boxes, a topmember having a wedge-like end portion received within said pockets andengaging said wedge means, and other resilient means positioned betweensaid members at spaced points.

JOHN E. FLESCH.

boxes, pockets in said pockets, a top member having wedge-like endsdownwardly projecting into said

